Smoker s



(No Model.)

s. E. LAWRENCE. 7' SMOKERS APPLIANCE.

No. 338,421. Patented Mar. 23, 1886.

INVENTCR. final rcnec Z 57% ATTORNEY WITNESSES UNITED STATES SAMUEL E.LAVRENGE,

PATENT OFFICE.

OF UTIGA, NEW YORK.

SMOKERS APPLIANCE.

SPECIFICATION forming part of Letters Patent No. 338,421, dated March23, 1886.

Application filed July 7, 1885. Serial No. 170,896. (No model.)

To aZZ whom it may concern.-

Be it known that I, SAMUEL E. LAWRENCE, a citizen of the United States,residing at Utica, in the county of Oneida and State of New York, haveinvented certain new and useful Improvements in Appliances for SmokersUse, of which the following is a full and complete description, such aswill enable oth ers to make and use the same, reference being had to theaccompanying drawings, in which similar letters of reference indicatelike parts in the different figures.

Figurel is a longitudinal section through a pipe and its stem, showingthe enlargement of the latter, which forms a chamber that contains thesmoke-purifying apparatus. Fig. 2 is a longitudinal section through thestem when used as a cigar-holder, showing the same purifying apparatusapplied thereto. Fig. 3 is a side View of a coiled-spring diaphragmwhich divides thesmoke-purifying chamber into two parts.

This invention relates to improvements in that class of smokersappliances which are designed to purify the smoke and to prevent thepassage of nicotine and other noxious matters from the burning tobaccoof a pipe, cigar, or smoking-tube to the smokers mouth and lungs, and atthe same to allow the draft to be so free as not to incommode the userin the least. Many devices have been suggested by which it was proposedto accomplish this result, such as a chamber in which the smoke becameslightly cool and a portion of the essential oils were separated bycondensation. In others the chamber was filled with dry cotton, sponge,or other material capable of absorbing and retaining the noxiouselements of the smoke; and it has been further proposed to form thefilter or medium through which the smoke passes of a mixture of varioussubstances that might have a chemical action upon the products ofcombustion as they passed through it, and thus to destroy the noxiouselements, and which might also be caused to impart fragrance to thesmoke at the same time. But these devices, so far as my knowledgeextends, were only palliative of the evil, for they failed to removemore than a part of 0 the noxious matters, while the absorbent orfiltering material soon became so filled and clogged with the oils andother matters carried by the smoke as to render its further usedifficult, if not impossible, as it was only with great effort that thesmoke could be drawn through it, while the desirable properties of thetobacco were as liable to be destroyed as the noxious and unwholesome.

To overcome these difficulties and enhance the value of the chamberedsmoking tube or stem, my invention consists in the combination, withsaid chambered tube and inclosed absorbent, of a coiled-springdiaphragm, as hereinafter specified.

In the drawings, Fig. 1 shows a pipe provided with my improvements, Abeing the pipe-bowl, which enters the socket a of the stem B. This stemis provided with an enlarged chamber, 0, which serves as a receptaclefor the sponge filter F, andis connected by a suitable opening with thesocket a, and by another opening, a, passing through an extension of thestem, with the mouth of the user. At a suitable point, d, in theenlargement 0 of the stem it is divided and the two parts united,preferably by a screw-joint, although the ordinary socket-joint may beused, if desired. This joint allows the two parts of the stem to beseparated, and gives ready access to the filtering-chamber. It will beobserved that the part which forms the outside of the joint d has noshoulder for the end of the inner part to bear against, by which arrangement it becomes impossible for the sponge or other filtering agent toget into the joint while the two parts are being connected, thusinsuring a tight joint without trouble from the filter while making it.Transversely crossing this chamber, and secured in a suitable recessformed in its sides, is the diaphragm D, which consists of a coiled wirespring, as seen in Fig. 3. This form of diaphragm possesses greatelasticity, enabling it to readily accommodate itself to the form of thefilter. diaphragm divides the chamber into two parts, one of which, I),is commonly vacant and receives the smoke after it has been purified bypassing through the filter.

The filter F is preferably a piece of sponge, of suitable size and form,which, when in use, is partially saturatedivith Purewater or waterhaving a slight addition of alcohol, through which the smoke passes. Thesponge sepabeing old. In smoking-tubes of this kind it rates theparticles of water, so that they act in the same manner as a spray, thuscoming in contact with every portion of the products of combustionpassing through it, washing and purifying them effectually.

It will be apparent that the construction of the joint allows thechamber to be readily opened for the removal of the sponge after using,to facilitate washing or otherwise cleaning the same whenever suchpurification may be needful, or to replace it with a new one, ifdesired.

It willbe evident that, if desired, other materials may be used in placeof the sponge for forming this filter; butI prefer the latter; and,further, if it is desired to add to the aroma of the tobacco, this maybe accomplished by saturating a small sponge with the desired flavoringextracts. Said sponge, being placed in the chamber 12 at the rear of thediaphragm, readilyimparts its aroma to the purified smoke passingthrough the chamber.

It will be seen by an inspection of Fig. 2 that the stem B, when thepipe-bowl is re moved, forms a cigar-holder, and may be used as such.

It will be understood that I do not broadly claim a sectionalsmoking-tube, nor a smoking-tube having a chambered portion containing afiltering material and divided transversely by a diaphragm, suchconstruction is of advantage to provide a diaphragm that shall not onlybe capable of dividing the chamber and permitting the passage of smoke,but which shall also aftord an elastic support for the filtering-sponge.

It is obvious that a diaphragm, as D, composed of a coiled wire springfurnishes a cheap, simple, and effective means of accomplishing theabove-named objects, and by reason of its compressibility and resiliencysuch coiledspring diaphragm is capable of being readily introduced intothe chamber 0, and will instantly and readily accommodate itself to thebulk and form of the filtering material and to the diameter of itsinclosing-chamber.

Having thus described my invention, I claim as new and desire to secureby Letters Patent the following:

A smoking-tube having a chamber, 0, divided by a transverse coiledspring diaphragm, D, and containing a filtering mate rial, F, on oneside of said diaphragm, sub

'stantially as described.

SAMUEL E. LAYVR-ENOE.

\Vitnesses:

M. V. E. CHANDLER, RUTLEDGE WILLsON.

